JP2013083323A - Solenoid valve manifold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solenoid valve manifold capable of increasing the flow rate of pressure fluid supplied and discharged through a solenoid valve.SOLUTION: A second side surface 32c of a valve body 32 is formed so that one end side in an axial direction of a spool valving element is more spaced from a valve port than the another end side in the axial direction while a first side surface 32b of the valve body 32 is formed so that the another end side in the axial direction is more spaced from the valve port than one end side in the axial direction of the spool valving element. An opening 38a on a counter surface 32a of a first output port 38 connected to a first output flow path 14 opened to a front surface 2b of a manifold base 2 is formed into a shape swelling out to the side of the first side surface 32b than an opening 36a on the counter surface 32a of a first exhaust port 36.

Description

  The present invention relates to a solenoid valve manifold.

  2. Description of the Related Art Conventionally, there is known an electromagnetic valve manifold capable of controlling the driving of a plurality of fluid pressure devices (for example, air cylinders) in parallel (for example, Patent Document 1). In the example shown in FIG. 9, the electromagnetic valve manifold 91 is configured by arranging a plurality of electromagnetic valves 93 in one direction on the mounting surface 92 a of the manifold base 92. The solenoid valve 93 employs a pilot-type solenoid valve that reciprocates the spool valve body 94 with a pilot fluid.

  Specifically, as shown in FIGS. 10 and 11, the manifold base 92 includes an air supply passage 95 connected to a pressure fluid supply source (not shown), and first and second exhaust passages 96 and 97. The spool valve body 94 extends along the width direction orthogonal to the axial direction. A plurality of air communication passages 95a branched from the air supply passage 95 and opened to the mounting surface 92a are formed in the air supply passage 95 for each electromagnetic valve 93, and the first and second exhausts. The first and second exhaust communication channels 96a and 97a branched from the first and second exhaust channels 96 and 97 and opened to the mounting surface 92a are provided for the electromagnetic valves 93, respectively. Is formed. The manifold base 92 is formed with first and second output channels 98 and 99 for each electromagnetic valve 93 that open to the mounting surface 92 a and connect the electromagnetic valve 93 and the fluid pressure device.

  On the other hand, the electromagnetic valve 93 includes a substantially rectangular parallelepiped valve body 102 in which a valve hole 101 into which the spool valve body 94 is inserted is formed. The valve body 102 includes an air supply port 103 connected to the air supply passage 95, first and second exhaust ports 104 and 105 connected to the first and second exhaust passages 96 and 97, and a first First and second output ports 106 and 107 connected to the second output flow paths 98 and 99, respectively, are formed. Each of the ports 103 to 107 communicates with the valve hole 101 and opens on a facing surface 102 a facing the mounting surface 92 a of the manifold base 92 in the valve body 102. The spool valve element 94 reciprocates in the valve hole 101 by the pilot fluid supplied through the pilot valve unit 108, so that the communication between the ports 103 to 107 is switched.

  As shown in FIG. 9, convex portions 111 and concave portions 112 are respectively formed on the side surfaces 102 b on both sides in the width direction of the valve body 102, and the mounting holes 113 are formed at positions corresponding to the convex portions 111 of the valve body 102. Is formed. Each electromagnetic valve 93 is fixed on the manifold base 92 by inserting a mounting screw 114 through the mounting hole 113 in a state where the convex portion 111 is fitted in the concave portion 112 of the adjacent electromagnetic valve 93. Thus, by forming the attachment hole 113 in the convex part 111, the internal diameter of the valve hole 101 is enlarged, and the flow volume of the pressure fluid supplied / discharged via each electromagnetic valve 93 is attained. In addition, although the width | variety in the solenoid valve 93 single-piece | unit becomes large by forming the convex part 111, by making the convex part 111 fit into the recessed part 112 of the adjacent electromagnetic valve 93, it is in the space | interval between the adjacent electromagnetic valves 93. Since it is possible to prevent an increase in a so-called valve pitch, an increase in size of the entire solenoid valve manifold 91 is suppressed.

JP-A-9-273651

  By the way, from the viewpoint of attachment of the solenoid valve manifold 91 and the like, in many cases, the first and second output flow paths 98 and 99 open to the front surface 92b on one end side in the axial direction of the spool valve body 94 in the manifold base 92. Formed. Therefore, as shown in FIG. 11, the first output flow path 98 and the first exhaust communication flow path 96a are formed side by side in the width direction in order to avoid interference with each other. Therefore, the area where the straight portion 98a along the axial direction of the spool valve body 94 in the first output flow path 98 and the opening 106a of the first output port 106 overlap, and the opening area (inner diameter) of the first exhaust communication flow path 96a. ) Must be reduced, and the flow rate of the pressure fluid may be limited. For convenience of explanation, FIG. 11 shows only the straight portion 98a of the first output flow path 98 connected to the rightmost solenoid valve 93, and omits the other straight portions 98a and the straight portions of the second output flow path 99. doing.

  The present invention has been made to solve the above problems, and an object thereof is to provide a solenoid valve manifold capable of increasing the flow rate of the pressure fluid supplied and discharged via the solenoid valve. There is to do.

  In order to achieve the above object, the invention according to claim 1 is a manifold base in which a plurality of flow paths are formed, a valve body in which a plurality of ports connected to the respective flow paths are formed, and between the ports. A plurality of solenoid valves having a shaft-shaped main valve body that switches the communication of at least one of the flow paths, the mounting surface on which the solenoid valve is mounted on the manifold base, and the main valve The valve body is opened to the end surface on one end side in the axial direction of the body, and the valve body is formed with a valve hole into which the main valve body is inserted and the ports communicate with each other. In the solenoid valve manifold arranged in the width direction orthogonal to the axial direction, the first side surface on the one end side in the width direction of the valve body is closer to the other end side in the axial direction than the one end side in the axial direction. Is separated from the valve hole And the second side surface on the other end side in the width direction of the valve body is formed such that the one end side in the axial direction is farther from the valve hole than the other end side in the axial direction. As for the said port connected to the flow path opened to a description surface and the said end surface, the opening part in the opposing surface facing the said description surface of the said valve body is arrange | positioned at the said axial direction one end side of the said port. The gist of the invention is that the port is formed in a shape that bulges toward the first side surface than the opening at the facing surface.

  According to a second aspect of the present invention, in the electromagnetic valve manifold according to the first aspect, the valve body has an attachment hole through which an attachment member for fixing the electromagnetic valve on the mounting surface is inserted. The gist is provided on the first side surface side with respect to the other axial end portion of the valve hole and on the second side surface side with respect to the one axial end portion of the valve hole.

  The invention according to claim 3 is the solenoid valve manifold according to claim 1 or 2, wherein the solenoid valve is connected to at least one of the axial ends of the valve body, and the shaft end portion of the main valve body A piston body that constitutes a piston chamber in which the piston provided in the piston chamber is reciprocally movable, and is configured as a pilot-type electromagnetic valve that reciprocates the main valve body by a pilot fluid supplied to the piston chamber. The manual operation valve portion for controlling the supply of the pilot fluid to the piston chamber by manual operation is juxtaposed in the width direction with respect to the piston chamber. .

  ADVANTAGE OF THE INVENTION According to this invention, the solenoid valve manifold which can aim at the increase in the flow volume of the pressure fluid supplied / discharged via a solenoid valve can be provided.

The partial cross section figure which shows the top view of the solenoid valve manifold of one execution form. Sectional drawing which shows the solenoid valve manifold of one Embodiment. The top view of the manifold base of one Embodiment. The side view which shows the valve body side end surface of the piston body of one Embodiment. The side view which shows the pilot valve side end surface of the piston body of one Embodiment. AA sectional drawing of FIG. (A)-(c) Operation | movement explanatory drawing of a solenoid valve. The partial cross section figure which shows the planar view of the solenoid valve of another example. The partial cross section figure which shows the planar view of the conventional solenoid valve manifold. Sectional drawing which shows the conventional solenoid valve manifold. The top view of the conventional manifold base.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
As shown in FIG. 1, the solenoid valve manifold 1 includes a substantially rectangular parallelepiped manifold base 2 and a plurality of solenoid valves 3 arranged side by side on the mounting surface 2 a of the manifold base 2. The solenoid valve 3 is configured as a pilot type solenoid valve that reciprocates a spool valve body 21 as a main valve body by a pilot fluid. The solenoid valve manifold 1 can control in parallel the drive of a plurality of fluid pressure devices (not shown) such as air cylinders corresponding to the number of solenoid valves 3. In the following description, the direction perpendicular to the axial direction of the spool valve body 21 and the direction in which the solenoid valves 3 are arranged (direction parallel to the placement surface 2a) is defined as the width direction, and the direction perpendicular to the placement surface 2a is defined. The height direction.

  Specifically, as shown in FIGS. 2 and 3, the manifold base 2 has an air supply passage 11 connected to a supply source (not shown) of compressed air as a pressure fluid, and first and second exhaust flows. The paths 12 and 13 extend in the width direction. The air supply passage 11 is formed near the center in the axial direction of the spool valve body 21 in the manifold base 2, and the first and second exhaust passages 12 and 13 are formed on both sides of the air supply passage 11. A plurality of air communication passages 11 a branched from the air supply passage 11 and opened to the mounting surface 2 a are formed in the air supply passage 11 for each electromagnetic valve 3. The first and second exhaust passages The first and second exhaust communication passages 12a and 13a branched from the first and second exhaust passages 12 and 13 and opened to the placement surface 2a are formed in the solenoid valves 3 and 13, respectively. ing.

  In the manifold base 2, a plurality of first and second output flow paths 14, 15 that connect the electromagnetic valve 3 and the fluid pressure device are formed for each electromagnetic valve 3. The first and second output channels 14 and 15 are formed in an approximately L shape, and are placed on the mounting surface 2a and the front surface 2b which is the end surface on the one axial end side (right side in FIG. 2) of the spool valve body 21. Each is formed to open. Specifically, the first and second output channels 14 and 15 open between the air supply communication channel 11a and the first and second exhaust communication channels 12a and 13a on the mounting surface 2a, and the front surface 2b. Is opened at a position shifted in the height direction. And the linear part 14a and the 1st exhaust communication flow path 12a along the axial direction of the spool valve body 21 in the 1st output flow path 14 are formed along with the width direction.

Next, the configuration of the electromagnetic valve will be described.
As shown in FIGS. 1 and 2, the electromagnetic valve 3 includes a main valve portion 23 having a spool body 21 and a valve body 22 having a substantially rectangular parallelepiped shape that accommodates the spool valve body 21 so as to reciprocate, and a valve body. 22 includes a pair of pilot valve portions 24 and a pair of manually operated valve portions 25 provided on both axial sides of the spool valve body 21.

  The valve body 22 of the main valve portion 23 is connected to a valve body 32 in which valve holes 31 opened on both axial sides of the spool valve body 21 are formed, and to both axial sides of the spool valve body 21 in the valve body 32. The piston body 33 has a substantially rectangular parallelepiped shape. The spool valve body 21 is accommodated in the valve hole 31 of the valve body 32 so as to be able to reciprocate. On the other hand, the spool valve body 21 is formed with a plurality of valve portions 21a which are separated from each other in the axial direction and switch the flow path of the compressed air. The diameter of each valve part 21a is formed larger than the shaft diameter of the spool valve body 21, and a packing 34 that seals between the valve hole 31 is mounted on the outer peripheral surface of each valve part 21a.

  As shown in FIG. 2, the valve body 32 has an air supply port 35 connected to the air supply communication channel 11a and first and second air ports connected to the first and second exhaust communication channels 12a and 13a, respectively. Two exhaust ports 36 and 37, and first and second output ports 38 and 39 connected to the first and second output flow paths 14 and 15, respectively, are formed. Each of the ports 35 to 39 communicates with the valve hole 31 and opens on a facing surface 32 a facing the mounting surface 2 a of the manifold base 2 in the valve body 32. The air supply port 35 is formed near the center in the axial direction of the spool valve body 21 in the valve body 32, and the first and second exhaust ports 36 and 37 are formed on both sides of the air supply port 35, respectively. The first and second output ports 38 and 39 are formed between the air supply port 35 and the first and second exhaust ports 36 and 37, respectively.

  In the present embodiment, as shown in FIG. 1, the first side surface 32 b on one end side in the width direction (left side in FIG. 1) of the valve body 32 is from the one end side in the axial direction (lower side in FIG. 1). Also, the other end side (the upper side in FIG. 1) is formed so as to be separated from the valve hole 31. Further, the second side surface 32 c on the other end side in the width direction (right side in FIG. 1) of the valve body 32 is formed such that one end side is separated from the valve hole 31 than the other end side in the axial direction of the spool valve body 21. In addition, the first side surface 32 b of the adjacent electromagnetic valve 3 and the spool valve body 21 are formed so as to overlap in the axial direction. That is, the valve body 32 is formed in a substantially crank shape in which the one end side in the axial direction and the other end side in the axial direction are shifted in the width direction in a plan view of the solenoid valve manifold 1.

  Specifically, the first side surface 32b includes a first inclined surface 41a inclined at a predetermined angle so as to be separated from the valve hole 31 from one end side in the axial direction of the spool valve body 21 to the other end side, and a first inclination. It is comprised from the 1st parallel surface 41b parallel to the coaxial direction continuously provided in the axial direction both ends in the surface 41a. In other words, the first side surface 32b is such that the distance to the valve hole 31 at an arbitrary position is greater than or equal to the distance to the valve hole 31 at the position on one end side in the axial direction of the spool valve body 21 from the arbitrary position. Is formed.

  Further, the second side surface 32c has a second inclined surface 42a inclined in parallel to the first inclined surface 41a so as to approach the valve hole 31 from one axial end side to the other end side of the spool valve body 21, and It is comprised from the 2nd parallel surface 42b parallel to the coaxial direction continuously provided in the axial direction both ends in the 2nd inclined surface 42a. That is, the second side surface 32c is such that the distance to the valve hole 31 at an arbitrary position is greater than or equal to the distance to the valve hole 31 at the position on the other axial end side of the spool valve body 21 from the arbitrary position. Is formed. In addition, the 1st inclined surface 41a and the 2nd inclined surface 42a, each 1st parallel surface 41b, and each 2nd parallel surface 42b are formed in the same magnitude | size, The 1st side surface 32b of each solenoid valve 3 is The second side surface 32c of the adjacent electromagnetic valve 3 is in contact with the substantially entire surface.

  As shown in FIG. 3, the opening 38 a of the first output port 38 is located on the first side surface than the opening 36 a of the first exhaust port 36 on the facing surface 32 a facing the mounting surface 2 a of the valve body 32. It is formed in a shape that bulges to the 32b side. Further, the opening 35 a of the air supply port 35 is formed in a shape that bulges toward the first side surface 32 b than the opening 38 a of the first output port 38. Further, the opening 39 a of the second output port 39 is formed in a shape that bulges toward the first side surface 32 b than the opening 35 a of the air supply port 35. That is, the opening 38a of the first output port 38 connected to the first output flow path 14 that opens to the placement surface 2a and the front surface 2b is the shaft of the spool valve body 21 at the first output port 38 on the opposing surface 32a. It is formed in a shape that bulges toward the first side surface 32b from the opening 36a of the first exhaust port 36 that is arranged adjacent to one end side in the direction.

  As shown in FIG. 1, the attachment hole 44 is provided in the valve body 32 on the first side surface 32 b side with respect to the other axial end portion of the valve hole 31 and on the second side surface 32 c side with respect to one axial end portion of the valve hole 31. Are provided respectively. Then, an attachment screw 45 as an attachment member is inserted into the attachment hole 44 and screwed into a screw hole (not shown) of the manifold base 2 so that the valve body 32 (electromagnetic valve 3) is fixed on the mounting surface 2a. It is intended to be used. As shown in FIG. 2, a seal member 46 is interposed between the manifold base 2 and the valve body 32 to seal between the mounting surface 2a and the opposing surface 32a. The seal member 46 is formed with an opening (not shown) having the same shape as the opening shape of the facing surfaces 32 a of the ports 35 to 39.

  Further, the valve body 32 opens to a position communicating with the air supply port 35 regardless of the position of the spool valve body 21, and substantially T-shaped to open at both axial end surfaces of the spool valve body 21 in the valve body 32. A shaped air supply passage 48 is formed.

  As shown in FIGS. 2 and 4, the piston body 33 constituting the valve body 22 is formed with an elongated piston chamber 52 that opens to the valve body side end surface 33 a and is long in the height direction. In the piston chamber 52, a piston 53 fixed to the shaft end portion 21b of the spool valve body 21 is accommodated so as to be capable of reciprocating. As shown in FIGS. 2 and 5, the piston body 33 communicates with the piston chamber 52 and the pilot valve side end surface 33 b of the piston body 33 and communicates with the air supply passage 48 via the pilot valve portion 24. A flow path 55 is formed. Then, in accordance with the operating state of the pilot valve portion 24 or the manual operation valve portion 25, compressed air is supplied from the air supply passage 48 to the piston chamber 52 via the communication passage 55 so that the spool valve body 21 reciprocates. It has become. That is, the compressed air of this embodiment also functions as a pilot fluid.

Next, the configuration of the manually operated valve unit and the pilot valve unit will be described. In addition, a pair of manual operation valve part 25 and a pair of pilot valve part 24 are comprised similarly.
As shown in FIG. 1, the pilot valve portion 24 is fixed to the piston body 33 so that the piston body 33 is sandwiched between the pilot valve portion 32 and the manual operation valve portion 25. The chambers 52 are juxtaposed in the width direction. That is, the piston body 33 also functions as the body of the manual operation valve unit 25.

  Specifically, as shown in FIGS. 1 and 6, the piston body 33 is formed with a shaft hole 61 that opens on the upper surface and extends in the height direction at a position facing the mounting hole 44 in the axial direction. ing. Further, as shown in FIG. 6, the piston body 33 is formed with a shaft hole 61 and a manual air supply passage 62 that opens to the valve body side end surface 33a of the piston body 33, and as shown in FIG. A coil air supply channel 63 that opens to the valve side end surface 33 b and the valve body side end surface 33 a is formed below the piston chamber 52. As shown in FIG. 4, a connecting recess 64 is formed in the valve body side end surface 33 a in which the openings of the manual air supply passage 62 and the coil air supply passage 63 are opened. The connection recess 64 is formed so as to constitute a flow path that connects the manual air supply flow path 62 and the coil air supply flow path 63 to the air supply path 48 of the valve body 32 with the valve body 32. A seal member 65 is provided between the valve body 32 and the piston body 33 so as to surround the connection recess 64 and to be separated from the connection recess 64 to surround the opening of the piston chamber 52. Yes.

  Further, as shown in FIG. 6, the piston body 33 is formed with a relay flow path 67 and a coil output flow path 68 that open to the shaft hole 61 and the pilot valve side end face 33b, respectively, at intervals in the height direction. Yes. Further, as shown in FIG. 5, the piston body 33 is formed with a coil exhaust passage 69 that opens to the pilot valve side end surface 33 b and the lower surface on the lower side in the height direction. The pilot valve side end face 33b has a first communication groove 71 extending in the width direction and having openings of the communication flow path 55 and the relay flow path 67, and an opening of the coil output flow path 68 extending in the width direction. A second communication groove 72 that is open is formed. In addition, between the piston body 33 and the pilot valve portion 24, seal members that surround the first and second communication grooves 71 and 72, the opening of the coil air supply passage 63, and the coil exhaust passage 69, respectively. 73 is interposed.

  As shown in FIG. 6, a shaft-like manual shaft 74 is accommodated in the shaft hole 61 so as to be able to reciprocate along the height direction, and a manual spring 76 that biases the manual shaft 74 upward in the height direction. Is housed. The manual shaft 74 has a shaft-shaped shaft portion 75 and an operation portion 77 provided at the upper end of the shaft portion 75 and protruding from the upper surface of the piston body 33. A locking recess 78 extending in the height direction is formed on a side surface of the operation portion 77, and a tip of a pin 79 fixed to the piston body 33 is inserted into the locking recess 78. The shaft portion 75 is formed with a pair of valve portions 75 a spaced apart in the height direction, and the diameter of each valve portion 75 a is larger than the shaft diameter of the shaft portion 75. In addition, the packing 80 which seals between the shaft holes 61 is attached to the outer peripheral surface of each valve portion 75a. Each valve portion 75a is connected to the relay flow path 67 and the coil output flow path 68 while the manual shaft 74 is located at the first position where the pin 79 contacts the lower end of the locking recess 78. The relay channel 67 and the manual air supply channel 62 are communicated with each other in a state where the shaft 74 is pressed and the manual shaft 74 is positioned at the second position where the pin 79 contacts the upper end of the locking recess 78. Yes.

  As shown in FIG. 2, the pilot valve portion 24 includes a pilot body 81 fixed to the pilot valve side end surface 33 b of the piston body 33. A solenoid coil 82 is fixed on the pilot body 81, and a plunger 83 is supported in the solenoid coil 82 so as to be capable of reciprocating. The plunger 83 is urged toward the outside of the solenoid coil 82 by the urging force of the coil spring 84a with the yoke of the solenoid coil 82 as a fulcrum. When the solenoid coil 82 is excited, the plunger 83 moves toward the solenoid coil 82 against the urging force of the coil spring 84a.

  As shown in an enlarged manner in FIG. 2, a valve chamber 85 is defined in the pilot body 81, and a rubber pilot valve body 86 is disposed in the valve chamber 85. In the valve chamber 85, a first valve seat 85a is provided on one end surface side (the upper side in FIG. 2) of the pilot valve body 86, and a second valve seat 85a is provided on the other end surface side (the lower side in FIG. 2). A valve seat 85b is provided. A valve guide is provided between one end surface of the pilot valve body 86 and the plunger 83 facing the one end surface, and the other end surface of the pilot valve body 86 and the inner surface of the valve chamber 85 facing the other end surface. Between them, a coil spring 84b is disposed.

  The pilot body 81 is formed with an air supply hole 87 that penetrates the inside of the first valve seat 85 a and opens to the valve chamber 85 and is connected to the coil air supply passage 63 of the piston body 33. Further, the pilot body 81 is formed with an exhaust hole 88 that penetrates the inside of the second valve seat 85 b and opens to the valve chamber 85 and is connected to the coil exhaust passage 69. Further, the pilot body 81 has an output hole 89 that opens to the valve chamber 85 and is connected to the coil output flow path 68 via the second communication groove 72.

Next, the operation of the electromagnetic valve will be described with reference to FIG. In FIG. 7, for convenience of explanation, a region where compressed air is supplied is indicated by dot hatching.
As shown in FIG. 7A, when compressed air is supplied from the supply source to the air supply passage 11 of the manifold base 2, the manual air supply passage is provided via the air supply port 35 and the air supply passage 48 of the solenoid valve 3. Compressed air flows into 62 and the coil air supply passage 63 (air supply hole 87). In this state, when energization to the solenoid coil 82 is started, the plunger 83 moves into the solenoid coil 82, the pilot valve body 86 is seated on the first valve seat 85a, and the air supply hole 87 and the output hole 89 are connected. It becomes a communication state. Then, as shown in FIG. 7B, the output hole 89 passes through the second communication groove 72, the coil output flow path 68, the shaft hole 61, the relay flow path 67, the first communication groove 71, and the communication flow path 55. Compressed air is supplied to the piston chamber 52. On the other hand, when the energization to the solenoid coil 82 is stopped, the pilot valve body 86 is seated on the second valve seat 85b, and the exhaust hole 88 and the output hole 89 are in communication with each other. Then, the compressed air in the piston chamber 52 is discharged from the exhaust hole 88 through the coil exhaust passage 69 to the outside.

  Even when the energization of the pilot valve portion 24 is stopped, when the manual shaft 74 of the manual operation valve portion 25 is pressed, the manual air supply passage 62 communicates with the manual supply passage 62 as shown in FIG. The path 55 is in a communication state. Thus, compressed air is supplied from the manual air supply passage 62 to the piston chamber 52 through the shaft hole 61 and the communication passage 55.

  Then, in accordance with the operation of the pilot valve portion 24 or the manual operation valve portion 25, compressed air is supplied to the piston chamber 52 on one end side in the axial direction of the spool valve body 21, and the compressed air is supplied from the piston chamber 52 on the other end side. Is discharged, the spool valve body 21 moves to the other axial end side. As a result, the air supply port 35 and the first output port 38 are in communication with each other, and the second output port 39 and the second exhaust port 37 are in communication with each other. On the other hand, when the compressed air is discharged from the piston chamber 52 on the one end side and the compressed air is supplied to the piston chamber 52 on the other end side, the spool valve body 21 moves to one end side in the axial direction. The supply port 35 and the second output port 39 are in communication with each other, and the first output port 38 and the first exhaust port 36 are in communication.

As described above, according to the present embodiment, the following operational effects can be achieved.
(1) The first side surface 32b of the valve body 32 is formed so that the other end side in the axial direction is separated from the valve hole 31 than the one end side in the axial direction of the spool valve body 21, and the second side surface 32c is formed as the spool valve. The body 21 was formed so that one end side in the axial direction was separated from the valve hole 31 than the other end side in the axial direction of the body 21. Then, the opening 38 a at the facing surface 32 a of the first output port 38 connected to the first output flow path 14 is closer to the first side surface 32 b than the opening 36 a at the facing surface 32 a of the first exhaust port 36. Formed into a swollen shape.

  According to the above configuration, the first and second side surfaces 32 b and 32 c are inclined toward the one end side in the width direction with respect to the axial direction of the spool valve body 21, and therefore the first connected to the first output flow path 14. The opening 38a of the one output port 38 can be formed to bulge greatly toward one end in the width direction with respect to the opening 36a of the first exhaust port 36 connected to the first exhaust communication flow path 12a. Therefore, in the manifold base 2, the range in the width direction that can be used to form the first output flow path 14 and the first exhaust communication flow path 12a corresponding to each electromagnetic valve 3 can be increased. Therefore, the area where the linear portion 14a of the first output flow path 14 and the opening 38a of the first output port 38 overlap as viewed in the height direction, and the opening area of the mounting surface 2a of the first exhaust communication flow path 12a ( At least one of the inner diameters) can be increased, and the flow rate of the compressed air supplied and discharged via each solenoid valve 3 can be increased.

  (2) The mounting holes 44 are respectively provided on the first side surface 32 b side with respect to the other axial end portion of the valve hole 31 and on the second side surface 32 c side with respect to the one axial end portion of the valve hole 31. According to the above configuration, the attachment holes 44 are formed in thick portions on both sides in the width direction of the valve hole 31, so that the inner diameter of the valve hole 31 can be suppressed from being reduced in order to form the attachment hole 44. Further, it is possible to further increase the flow rate of the pressure fluid supplied and discharged through each electromagnetic valve 3.

  (3) The valve body 22 is connected to both ends of the valve body 32 in the axial direction, and a piston body constituting a piston chamber 52 in which a piston 53 provided at the shaft end portion 21b of the spool valve body 21 is reciprocally accommodated. The solenoid valve 3 is configured as a pilot-type solenoid valve that reciprocates the spool valve body 21 with a pilot fluid supplied to the piston chamber 52. And since the manual operation valve part 25 which controls supply of the pilot fluid to the piston chamber 52 by manual operation is juxtaposed in the width direction with respect to the piston chamber 52 in the piston body 33, the electromagnetic valve 3 is the shaft of the spool valve body 21. An increase in size in the direction can be suppressed.

In addition, the said embodiment can also be implemented in the following aspects which changed this suitably.
In the above embodiment, the first and second side surfaces 32b and 32c have the first and second parallel surfaces 41b and 42b, respectively. However, the present invention is not limited to this, for example, the entire first side surface 32b and second side surface 32c are valved. It is good also as a shape inclined with respect to the hole 31. FIG. For example, as shown in FIG. 8, the first side surface 32b is gradually separated from the valve hole 31 from one end side to the other end side, and the second side surface 32c is stepped from the other end side to the one end side. Alternatively, the shape may be separated from the valve hole 31. Furthermore, the first and second side surfaces 32 b and 32 c may be curved with respect to the axial direction of the spool valve body 21.

  In the above embodiment, if the opening 38a of the first output port 38 has a shape bulging to the first side surface 32b side of the opening 36a of the first exhaust port 36, for example, the opening 35a of the air supply port 35 However, the shape does not have to bulge toward the first side surface 32b from the opening 38a of the first output port 38.

-In the said embodiment, although the attachment hole 44 was formed in the 1st side surface 32b side of the one end part of the valve hole 31, and the 2nd side surface 32c side of the other end part, it is not limited to this and formed in another position. Good.
In the above embodiment, the piston chamber 52 is formed in the shape of a long hole that is long in the height direction, and the piston 53 is formed in the shape of an elliptic cylinder corresponding to the piston chamber 52. The piston 53 may be formed in a cylindrical shape.

In the above embodiment, the manually operated valve unit 25 is arranged in the width direction with respect to the piston chamber 52, but the present invention is not limited thereto, and the manual operation valve portion 25 may be arranged in the axial direction with respect to the piston chamber 52.
In the above embodiment, a so-called double pilot type in which two pilot valve portions 24 are provided in the solenoid valve 3 is adopted, but not limited to this, a so-called single pilot type having only one pilot valve portion is adopted. May be adopted. Moreover, the number of ports of the solenoid valve 3 may be three or four.

-In above-mentioned embodiment, although compressed air was used as a pressure fluid, you may use not only this but another fluid.
In the above embodiment, the present invention is applied to the solenoid valve manifold 1 in which the solenoid valve 3 is configured as a pilot-type solenoid valve that drives the spool valve body 21 based on the pilot fluid. 3 can also be applied to the case where the main valve element is driven based on the reciprocation of the plunger by excitation of the solenoid coil.

  DESCRIPTION OF SYMBOLS 1 ... Solenoid valve manifold, 2 ... Manifold base, 2a ... Mounting surface, 2b ... Front surface as an end surface of one end side of an axial direction, 3 ... Solenoid valve, 11 ... Supply air flow path, 11a ... Supply air communication flow path, 12 ... 1st exhaust flow path, 12a ... 1st exhaust communication flow path, 13 ... 2nd exhaust flow path, 13a ... 2nd exhaust communication flow path, 14 ... 1st output flow path, 14a ... Linear part, 15 ... 2nd output Flow path, 21 ... Spool valve body, 21a ... Valve portion, 21b ... Shaft end, 23 ... Main valve portion, 24 ... Pilot valve portion, 25 ... Manually operated valve portion, 31 ... Valve hole, 32 ... Valve body, 32a ... opposing surface, 32b ... first side, 32c ... second side, 33 ... piston body, 35 ... air supply port, 35a, 36a, 38a, 39a ... opening, 36 ... first exhaust port, 37 ... second exhaust Port 38 first output port 39 second output port 44 mounting hole 5 ... mounting screw as mounting member, 48 ... supply passage, 52 ... piston chamber, 53 ... piston, 55 ... communicating passage, 61 ... shaft hole, 74 ... manual shaft.

Claims (3)

A plurality of solenoid valves having a manifold base in which a plurality of flow paths are formed, a valve body in which a plurality of ports connected to the respective flow paths are formed, and an axial main valve body that switches communication between the ports And comprising
At least one of the flow paths opens to a mounting surface on the manifold base where the electromagnetic valve is mounted and an end surface on one end side in the axial direction of the main valve body,
The valve body is formed with a valve hole through which the main valve body is inserted and the ports communicate with each other.
In the solenoid valve manifold, each of the solenoid valves is arranged in the width direction orthogonal to the axial direction on the placement surface.
The first side surface on the one end side in the width direction of the valve body is formed such that the other end side in the axial direction is separated from the valve hole than the one end side in the axial direction, and the width in the valve body is The second side surface on the other end side in the direction is formed such that the one end side in the axial direction is separated from the valve hole than the other end side in the axial direction.
As for the said port connected to the flow path opened to the said mounting surface and the said end surface, the opening part in the opposing surface facing the said mounting surface of the said valve body is arrange | positioned at the said axial direction one end side of the said port. An electromagnetic valve manifold having a shape bulging toward the first side surface than an opening portion on the facing surface of the port. The solenoid valve manifold according to claim 1,
The valve body has a mounting hole through which a mounting member for fixing the electromagnetic valve on the mounting surface is inserted, the first side surface side with respect to the other axial end portion of the valve hole, and the valve hole An electromagnetic valve manifold provided on each of the second side surfaces with respect to one axial end portion. The solenoid valve manifold according to claim 1 or 2,
The solenoid valve has a piston body which is connected to at least one of the axial ends of the valve body and constitutes a piston chamber in which a piston provided at the shaft end of the main valve body is reciprocally accommodated. And configured as a pilot-type solenoid valve that reciprocates the main valve body with a pilot fluid supplied to the piston chamber,
The solenoid valve manifold, wherein a manual operation valve portion for controlling supply of the pilot fluid to the piston chamber by manual operation is juxtaposed in the width direction with respect to the piston chamber.

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